
B–63502EN/01
9. SPINDLE FUNCTIONS
NC FUNCTION
85
Up to two spindles can be controlled. The two spindles are called the first
and second spindles. The first and second spindles are made up of serial
interface spindles.
A spindle speed is specified with a 5-digit numeric value following S.
This command functions on the spindle selected by spindle selection
signals (SWS1 to SWS2). More than one spindle can be selected so that
they can be rotated at the same time by specifying the same command.
Each spindle holds a specified command (spindle speed). When the
spindle is not selected by the spindle selection signal, the spindle rotates
at the held spindle speed. By using this feature, the spindles can be rotated
at different speeds at the same time. For each spindle, a signal to stop
spindle rotation is provided (*SSTP1 to *SSTP2). With these signals,
unnecessary spindles can be placed in the stopped state.
Feedback pulses from the position coders connected to the first and
second spindles can be input to the CNC to perform threading and feed
per rotation. One of the position coders connected to the first and second
spindles is selected by a signal. The feedback pulse from the selected
coder is then input to the CNC.
SWS1
SWS2
*SSTP1
*SSTP2
S
command
Hold
1st
spindle
Position
coder
Hold
2nd
spindle
Position
coder
9.11
MULTI–SPINDLE
CONTROL
(T series)
T series